Chrissy Teigen and John Legend are welcoming a new member to their family … sharing a video of the rescue dog they adopted just months after one of their other pups passed away.

The Hollywood super couple announced the adoption on Sunday — National Puppy Day … explaining they adopted Dudley from Wags & Walks … a nonprofit “dedicated to saving dogs from high-kill shelters and placing them in loving homes.”

Legend and Teigen shared a clip featuring Dudley who came into a Wags & Walks shelter shortly after the L.A. wildfires in January.

Dudley’s happy and healthy now … and, Chrissy and John plan to keep him that way by making sure he lives on Kismet — the dog lifestyle brand the two stars cofounded.

As we mentioned … Chrissy and John lost their dog back in January — telling fans their pup Penny had gone to doggy heaven.

Chrissy wrote a heartfelt message to Penny at the time … saying she’d miss her — and, they’d all be together again one day.